HI-STORM

HI-STORM (Holtec International Storage Module) is Holtec International’s Multi-Purpose Canister (MPC) system for the dry storage of used nuclear fuel. The HI-STORM system consists of interchangeable sealed metallic MPCs which contain the used fuel; a vertically ventilated storage overpack or underground Vertical Ventilated Module (VVM), which contains the MPC during storage; and an on-site transfer cask, HI-TRAC, which contains the MPC during loading, unloading, and transfer operations.

HI-STORM CIS (Holtec International Storage Module Consolidated Interim Storage) is the next generation underground storage design that will house used fuel packaged in any canister supplied by any cask vendor.

HI-STORM FW (Holtec International Storage Module Flood and Wind) is Holtec International’s highest capacity Multi-Purpose Canister (MPC) system for the dry storage of used nuclear fuel. HI-STORM FW is designed to provide physical protection of the used fuel, radiation shielding, and passive heat removal during interim storage.

The HI-STORM 100 System is designed to accommodate a wide variety of spent nuclear fuel assemblies and other radioactive materials in a single overpack by utilizing different MPCs. The HI-STORM 100 System utilizes the HI-TRAC Transfer Cask for transporting the MPC from the spent fuel pool and for inter-cask MPC transfer required for on-site storage and off-site transport.